EP 2776902 A2 20140917 - ULTRASOUND BASED MOBILE RECEIVERS IN IDLE MODE
Title (en)
ULTRASOUND BASED MOBILE RECEIVERS IN IDLE MODE
Title (de)
MOBILE EMPFÄNGER AUF ULTRASCHALLBASIS IM RUHEMODUS
Title (fr)
RÉCEPTEURS MOBILES ULTRASONORES EN MODE REPOS
Publication
Application
Priority
- US 201113290797 A 20111107
- US 2012062598 W 20121030
Abstract (en)
[origin: US2013114380A1] An acoustic system, which may be ultrasonic, operates in a power efficient idle mode thereby reducing the power consumption required by high frequency sampling and processing. While in idle mode, an acoustic receiver device operates with an idle sampling rate that is lower than the full sampling rate used during full operational mode, but is capable of receiving a wake-up signal from the associated acoustic transmitter. When the wake-up signal is received, the acoustic receiver switches to full operational mode by increasing the sampling rate and enables full processing. The acoustic system may be used in, e.g., an ultrasonic pointing device, location beacons, in peer-to-peer communications between devices, as well as gesture detection.
IPC 8 full level
CPC (source: EP US)
G06F 1/325 (2013.01 - EP US); G06F 3/017 (2013.01 - EP US)
Citation (search report)
See references of WO 2013070458A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013114380 A1 20130509; US 9575544 B2 20170221; CN 103959201 A 20140730; CN 103959201 B 20170301; EP 2776902 A2 20140917; JP 2015501962 A 20150119; JP 5914683 B2 20160511; WO 2013070458 A2 20130516; WO 2013070458 A3 20131010
DOCDB simple family (application)
US 201113290797 A 20111107; CN 201280054194 A 20121030; EP 12798064 A 20121030; JP 2014540016 A 20121030; US 2012062598 W 20121030